Trip lock



amante@ Aug. 26, 1930. c. N. FAlRcHlLD TRIP Loox Filed May 25, 1925 HHH y .H I' r r ll-lllllllml mmmminumun l l l l- I xml MI "Il Jil Aug 26, 1930. c. N. FAlRcHlLD 1,774,259

TRIP LOCK Filed May 25, ,1925 2 Sheets-Sheet 2 ,lllllllllil WMM larenied Aug. `ze, 1930's` f d l Vi.1]7.742259"? CHARLES njrniuonitn; cameroun, ooimnomicrr," .essreuoia rowrnrnonirnmooil couroaeriorr-,orimw YORK.' N.,`Y., aooroun'rron GEDELAWARE Apiyncatior filed MayV 25,

' rEhisinvention relates -toilocksinzgeneral and has for its principal obj ect-*the provision of a Ycoincidentallodi, thatf-is one in Ywhich theshutting off Yofthe ignition is necessarily simultaneous with or subsequent to the looking o the carvandin which the turning on ofi the ignition prior to unlocking is prefVA rented, in which the driver is forced towithdraw Lthe key from the lock before he candrive 1o thek automobile. f; i A further object yout the present invention is the provision of a coincidental lookinwhich the usual ykeyfslot is'olosed'l by va leverwhich can be swung to clear 'theslot only lwhen-the 1:5 bolt is in locking position. f Astill Jfurther objectl of the inventionis `the/provision* of a lock of'any type which the bolt is moved to lockingl position against a resistance. Y

'v Astillfurther object ofthe is the f stolen automobiles of-those iwhieh are pro.

vided k'with lockingdevieesbut*inwhich the locking devices were not in locked' position :ze vat'the timethe theft oeourredfthe Underwriters have created ya class which they call Group l which includes those locksinwhich the driver of the yCar.mayjn'oty leave thefcar 4unlocked unless-he also leaves'the ignition-k :s on and the rengine running.v It is quite'adf Vantageous with these Grroupv I' locks thatthe owner ofthe car should remove .thelkey .from the lock while the automobile'giskin 'operation Y provided ofcourse, that due aiidproperj'st'epsv f! Y are taken to prevent accidental locking of 'theV rar while it is in, motion; I havetherefore designed vthe present coincidental' lock "in which the hey can rbeinserted inits look onlyV when the-locking bolt is, in forwarder-lool? 45 ing pesitien andiin whichthe unlocking of theV gcarfrcan only be oerOmed-simultaneouslylf: with-or subsequent tothe actualbodily r'e y moral offtherkey from itslleyh-olevofr slot. Valso `rind it highly advantageous,: underpsome 5o circumstances to gjhave aflock` infwhich `the '1925. serial No.` 32,8051' torwa-rdfmoyement `fot-"lol,cking position thei of different movementsv ai'idagainst an appreciable resistance instead of tripping the locking bolt so thatiit would be shot forward f bv afheavyspring intolooking position. v

In thedrawings Figure lis a front Yelevation partlyin lsec` tions' v Figurek 2-is `a 4sectional lView at right' angles y `bolt :is vvpertornlcdim'a'n'millyuby a plurality?v d en. p

thereto .and takenthru j the centerline [of the' locking bolt.

.Figureisf-asideelevation. i A i Figurel isa topV plan View.

, Figure 5 is a horizontalsection-'thru- *axis ofthe tri-p. f S; i 'Y AVFigure is a fragmentaryside elevation-'i `.The housingfconsists of two sections 10 and' 11 v which snugly embrace gthe steering k-'po."st casing/'12',thelargerportion 10 of the casing having aibo'ss 14 andthe smallerportion or. cap fllfihaying'a similarbossl, these bosses fitting-circular holesl in thefsteeringf postcas.-

ingfglQ, and cooperating with 't'hegpowerful l lirictionalf oontactfto.hold' ;the housing sfe-v c'urely4 in'pl'ace. The twofpartsof thehousing 'aref secured together fon; the 'top lby me ans of f Special one wayigs'c'rewsliwhich seat rather deeply-r inbores V18.*Wlf1ifch are subsequentlyiv l' Vfilled with metalv plugsr Qrcaps 19. Y The de'- scription.- Theglock-infg bolt V20w-slides radially ofV the steering. post and Yengages vinfa Hhole thruone orlm'ofre of the rotatable tubes,y here i Y -shownhoweverfas entering'only-thelfsteering postvtube 21..-Theflooking bolt slidesv inra` cylindrical bearinginitheboss 14"and alsoin acentralibore of a-hollowcylindrical member 23 which;orvpconvenience of description,'will be ref errefd'toy as the fbloclgid illustnated,"` and hayingjon its tree.' or Outer f tails soaijymentioned arey old in-theiart and i are'mentioned here-'merelyilor'fullness eide- 'P V''Ilhisibloclhasalso.;aratlfier large bore 24 -Y slidablyreceiving; the 'head 2,5% oi fthe; locking i boltvQO, butv `which '.b'orefisfclosedk at the topV `by-i,firearm.ont e plusY .26 Plmanenfly SCUred to the bleek in. any manner vas thethreads' faeegafcylindrieal:lug: QSsnugly. receivedin A i 1 and 2 and the spring 32 interposed between the plug 26 and the circular head 25 of the locking bolt 2O` tends to hold the locking bolt downward, that is, into locking position. It

will be noted that in all the figures the .device-V is shown in Vlocked position.

The ignition circuit is brought to the device thru wires 33 rand 33, electrically connected to a pair of spaced spring terminals 34 which may be bridged by a metallic cup 35 insulated from 'but carried by the follower 30 y which slides inthe large borev 37 ext-ending from the top of the housing to within a short distance of the boss 14. 1 The follower 30 is also guided in its upv and'down movement by asmall hollowcylindrical bearing 38 pinned to the housing'as at 39. VA spring 40 in they ybore of the follower and engaging the flat .top face of the lug 28 tendsto Ahold the follower elevated or 1n a direction to close the` e ignition circuit by bridging the terminals 34 i movementl of theblock, would move the c onwith the cup contact 35. e

If the vparts so far describedwere free to move, the spring 31 would elevate the block 23, withdrawing the en d of the locking bolt v into the boss 14 and the spring 440,' upon such tact to close the ignition circuit; A vdetent 43 sliding in a bore 44 in the housing or Fpreferably, for convenience of-manufacture,

in ka plug 45 pinned to thehousing as at 46 Y is urged by la spring 47 toward th'eaxis of the shown) the `arm y engagesy the pin 51, withdrawing the detent 43 to the rightasY seenin Figure 2', compressing the spring and al- Vlowing the block 23 to shoot, under urge of the spring 31, to an upper or steering post unlocking and circuit closing position, in absence of mechanism illustrated but not so i -far described.y i

Y* ce The shaft V passes entirely thru the housing from side to side having on one end a small washer 61' whichserves to prevent movement' of the-shaft` to the right 'as seen in I4`igure 1 and carrying centrally aoneV 1 toothed pinion 62 keyed or splined' toV the shaft. A` small spring pressed plungerv 63' having a 'spool-type head 64' is slidably mounted ina bore 65 inthelhousing so that the stem or bolt-acting-end of the plunger may project intothe large vertical b ore 37.`

Aspring 66 acting against the end of the larger ,bore 65' and againstthehead 'of the l yplunger. 63 normally, holdsy the plunger out of the'bore37 and holds a lever 68 fast on the: other end of theshaft 60 a position soI that the free end 69 of the lever covers the key hole slot 67 or opening of the lock 56.

A small stop pin 7 0 is fixed to the housing and the lever 68 is provided with an arcuate slot 71 limiting the angular movement of the lever and hence preventing the shooting of the plunger l63 out of its bore. While not necessary the pin may also limit the inward movement of the plunger 63, which inengagement with the cylindrical wall 75 of the ward movement, however, is limited b follower' when the parts are in locked position, or is blocked by the cylindrical wall of the block 23 when the parts are in unlocked position.

-Movement of the block 23 in an upward direction is taken care of by the spring 31 but movement downwarchthat is, into locking positionfof this member, is preferably taken care of manually. To this end I secure to the block 23 a pin 77 which may be usedy asl the means for securing the plug to the block as it passes diagonally thru both. The pin 77 extends entirely thru one side of the housing and projects beyond the face of the housing shown' in elevation in `Figure 6.

`A handle 78 consisting of a disk 79 and a rod-like portion 8O integral therewith has la bore therein slidably receiving the' pin 77 and having in the bore a spring 82 engaging the outer'lat face of the pin so as to push the handle away from the end of the pin. In the housingl drive a disk shaped closure 85 .which is pinned or otherwise secured in place, is Hush with' the outer face of the housing on its outer side and is recessed by a circular depression 87 and also by a still deeper recess 88 whichrecesses are so joined that the disk 79 may slide freely from the shallower to the deeper depression.

A slot 89 in the closure 85 permits up and down movement of the handle 80. 1n locked position the handle 78engages the bottom of the slot 89 and the bottom of the shallower depression 87 and when the detent 43 is retracted to free the block 23 practically no resistance is given by the handle as it is free to fly upward except for the slight friction of the disk like collar 79 against the wall of the closure 85.`V e

l/Vhen the block 23 is in its .uppermost position the 'smaller portion 8O of the handle atfthe' top of the slot 89 and the disk like collar 79 is positioned at or near the bottom ofthe deeper circular recess 88. A straight downward movement 'of the handle 80 is preventedby engagement of the disk 79 with the recess 88 but aV direct inward push of the handle 78 compresses the spring and frees the disk 79 of such engagement and then allowsthe handle to move downward, such `downward movement heing resist-ed by the spring 31. Themovement required and the resistance ofA the spring 31 make it quite impossible te move the part into locking posi- 50 is` also slightly beveled. The function of upwardly under-the urge oi'vits 'spring' A3l p 4o 5 into engagementv with the bottom of the skirt running position. f. y y The owner now'wishesto stop the car. He can only open the V.ignition by}iirst 'loclin'gAv the car-.1: This'he does' bylirst :anjinward push ofthehandlei'S and'thena downward'-.move-fv inentof'this same Tfha'ndle. Assoonrafs the handle goes to the 'bottornolitsstrokeQ-the.l heavy springv y-47 shoots ythedetentf43 .for-- Ward lockingdown the:block23f-andamming tion accidentally and also prevent tlierlo'ck ing of the device by means of a blow. "Fur- Reierringagain to thedetent 43,.it will' be seen that the lower surface of thev yoke 49 has a slightl bevel and that the upper and outer peripheral surface of the circular'skirt thesebevelings isto'lower the follower 30 (thereby opening the' ignition vcircuit) upon the shooting forward of the detent 43, which forward movement can only take place atv thev timethe `plunger G3 is withdrawn`.` The latter is projectedforwardly and linto position to prevent upward movement of the fol-` `the "plun ger 63 into position 'above the vskirt 50.V The key is nowv turnedin itsslot in vthe lock cylinder, engagement of thefcam arm 55 withdrawing the/trip 43 .entirely withinits 'controllinga'fportion-ot:'saidmeans,'and a v yfmemberhavingtwopositions,inoneofwhich `105 i bore 44, thus lfreei-ng'the block 'Q3-to lNinove 1 Although not at all essential,l I pr'eferthat the locking boltiQO be ofsiich lengthjas not` to clear thesteering post upon suchupvifard ln'ovement: Nothing else happens until the keyy removedjthe key.cannotbe turnedy thru a complete revolution vbecausegofpgen gagement of the `Apinrl with the end ofthe slot 53, and"mustfthereforefbe *returned to s initial position -andfwithdrawni j Upon withdrawal 'of the key, thespr-ing withdrawsV the plunger, restoring thekey lever 68 to ley hole closingposition, the spring 3llcom`plete`s". the upward movement'of :23,:and-r this, 'and' thefurge of the spring, :40 throws -thecontact i 35 intofcircuit clos-ing position. VVThis ris the ,wha-Lr @min-isf; It shouldfununtil after v'said kev is removed from said Since the 'parts 'are in locked" dem the foilowerveo'lfbythe 'upper yke 49 engaging the sloping camming surface-.of the skirt 50. This is the locked position illus.

trated.'AV l lyln device ofv they character described.,

'al bolt, means for'moving the bolt to locking positiomkey controlled mechanismi'or with- 4 drawing said bolt from lockingfpo'sition, and',y

means barring entryfofsaidfkey into itskey? vslot, while the bolt is'withdrawn; I f

' 2. Ina deviceof thecharac-ter described,v f i a bolt, means for movingthe bolt tdl locking position,'key controlledmechanism for with-V drawing ,saidA bolt fromv locking'position, and meansibarring withdrawall of said boltwhil saidkey is -in lits key-slot.

Q3'. In adevice of the character described,a

bolt, me`ansforf .moving the bolt to locking position',11key controlledl mechanismfor withdrawing said boltfrom-'locking position, and meansv preventing withdrawal off said holt controlledmve'chaifism.

- 4. Inadevice `:fthel character described, a. spring retracted bolt, meansffor moving-.the bolt to `locking position -v 'againstv saidspring,

operated lockfor withdrawingsaid bolt'from "locking position, and j means lbarring entry of the key into its key-'slot while they bolt 1s l withdrawn. t t i y y Ina'device otft'he character described, a

bolt, m'eanshfor` moving thebolt from lock-A Q ing lpositifnrr to un-locked position 'andlmfor moving y the bolt from unlocked position yto locking io'sition Afa'rfke 'o erate'dvmechanisni f f the looltis'` preventedffrom completing kits movement in y one direction and"l in .the other position `the-'key yis harre'd fre'm- "entiy VYinto its key holef'l- I a reciprocating bolt', a 'spring moving said v means'controlledf'by afrotatalo'l'e cylinder'key anisrnfv for' moving saidbolt in the opposite 1 4 directionand adainstsaid s rino am'ember having angular. Vmovement,- audiresilient means holding saidfmember at one. limit of, Vits `travel in position to cover the key slot otk 'saidf'key controlled mechanism, vand 4further lf A .l Y means connected 'to' saidmember and servl' ing to interfere'with the movement'oftheboltp-f v when Vsaid member is moved fromfkeyslot covering position;

gln'la device Votfthe character described, i anfiignitioncircuit,a reciprocatingiollower 4'adapted tomove -toclo'setlie ignition circuit, a (member inovable j inH one vc liuec'tion :to lock the"igni'tioncircuit, means *to move saidy mein- Y movement ofthe follower to circuit closing position upon movement of saidmember toward unlocking position.

8. YIn a coincidental lock, means for opening and closing the ignition circuit,"a bolt movable to position to lock a movable member against movement with respect to the stationary parts of the automobile, a member movable to position to prevent the completion of the 'ignition closing movement, and resilient means for withdrawing said member to Vpermit completion of the ignition cir- Vmeanstending to move said follower to circuitk closing positioma locking bolt', amemn ber adapted to withdraw said bolt from locking yposition and to engage said follower to close the circuit,-` a detent preventing movement of said member in one direction, key controlled mechanism for withdrawing said detent, and means preventing withdrawal of said bolt as long as the key is in its slot in the detentwithdrawing mechanism.

10. The device of Vclaim 9 in which Athe last mentioned means includes a member slidable into positionto prevent said follower from closing the ignition circuit.l

11. The device of claimr 9 in which movement of the last mentioned means upon withf drawal Vof the key, frees the follower to comvco plete its circuit closing movement..

. 12.y In a lock,a,make and break device, a slide secured tothe moving portion of said device, means for locking two members against relative movement, a detent for-holding said means in-locked position, and means on said detent'for movingsaid slide to operate said` make and break device.

13. In anelectrical switch, a Contact, asecond contact movable into engagement therewith, to close a circuit, a springurging said second contact to circuit closing position, a

-manu-ally operated .member engaging the freev end kof said springand a device movable into position to limit movement ofsaid member and simultaneously to withdraw said contact and open the circuit.r y

14C.` In. a coincidental lock, a circuit make and break device, a followersecured to one memberthereof, a sliding member, a locking bolt, a spring` between said sliding member kand saidyfollower, a second spring between .said sliding member and said bolt, r4resilient means for `withdrawing`said bolt from lock- Y ing position,- a `detent `for preventing such inov'emtnt, meansk for withdrawing said detentfre ilicnt Vmeans urging saidgdetentto position vto prevent withdrawal o f the lock- .K

ingboltf, means' Ycarriedby said detent-for .compressing the spring betweentlie follower 'andthe sliding member, `and means for pre- .f venting movement of the follower under urge lock, an ignition 'cirber adapted to move said second contact into circuit opening position, key operated means for ,vithrrawing sait sliding member and an additional means for areventing movement of said second contact into circuit closing position until after removal of rthe key from said key operated means.

1b.. In switch a member movable to open or close a circuit, a latch preventing movement of said member toA circuit closing position, a second latch for holding said member from moving to circuit closing position', key operated mechanism for withdrawing said second latch, and means attached to said first latch blocking the key hole of said mechanism when said iirst mentioned latch is withdrawn.`

17. ln circuit controlling device, a member movable to make or break a circuit, means to move said member in one direction, means to move said member inthe other direction, means including a rotatable-cylinder keyoperated lock for moving one of said means, and means which must be thrown to position to block movement of said member'when the key is in the lock and automatically releasing said member: upon removal of the key from said lock.

18. 'In a circuit control, a member movable to make or break an electric circuit, a detent movable in one direction to move said member to one limit of its travel, key operated means for moving said detent to the other end of its travel to free said member, a block movable to withhold said detent in inoperative'position, a spring pressed latch move le into position to prevent movement of said membeiga spring urging said latch to inopervtive position, and a lever operatively connected to said latch to move lunder the urge of said spring toaposition to coverl the key hole of the key operated means whenA the 'latchis withdrawn. y

19. In a coincidental lock, a circuit closing member, a bolt, a detent to prevent contact between said member and bolt, a second deltent toprevent movement of said circuit clos- .Y is movedto position to free the bolt.

121.0The kdev-ice yof claim 20: in ,whichl the ent meansfor holding the bolt in locking lll) ' Linate'.

detent means key operated and the withdrawal preventing means is controlled by the presence or" .the key `in the key operated dev yan electric circuit and is key operated, the

withdrawal of the key ro'mf its keyy slot releasing the withdrawl preventing'means toA allow said means to move to .position to free the bolt. 'i n o i I 25. The device ofgclaim 20 inwhichthe bolt is spring retracted'and the detent inp engaging simultaneously two of said members. j l

32.In a coincidental'` lock, three coaxial members, one av locking bolt, one an ignition Acircuit switch carryingpfollower, and the other y,afspring pressed plunger, a vspring pressedposition-and to hold the followerY in ignition circuit open position.

In i .CHARLESN FAIRCI-IILD.v

its movement controls ,the making and y breaking of an electric circuit. Y

26.'I`he combination with a,coincidental lock of the typev in which` the lockingof 'A n the car breaks the ignition circuitV and the unlocking of the car closes the ignition circuit, of means for delaying the'unlocking of the car untila'fter the lockoperating means is withdrawn fromthe lock.

27. The combination with a coincidental lock of the typein which the locking of the car breaksthe ignition circuit and the un'- locking of the car closesv thev ignition circuit,

ofmeans for delaying-the", closing of lthe ignition circuit until after the lock operatv i ingmeansy is withdrawn from the lock.

28. The'combination with a coincidental f lock of thetype in which the locking of the car breaks theV ignition circuit and the un- Y locking of the car closes the ignition circuit,

of means for delaying the unlocking of the A car andthe closing of thev ignition circuit until after the lock operating means is with-v vdrawn fromjthe'lock. f Y

` y29. In affsteering post lock,` a bolt, an ig- Y nition circuit switch contact, al sliding mem l ber, a spring to urge .the sliding member in Y ber and into ignition circuit closing posi- Y one direction, a spring to urge the .bolt yin the oppositeidirection, anda third spring urging the contact vaway from Vthe vsliding member.

30. In a locka hollow sliding member, a bolt slidable in said member, opposed resilient Vmeans.urgii'ig the bolt inV opposite directions, an ignition 'switchy plunger, means i urging the 'plunger from the sliding memtion, and key operated means for holding the plunger out of ignition circuit closing position. f Y

31. In a lock, three coaXialmembers one l a locking bolt, three spaced springs each engaging one of said members, and a detent ,1201&"'

, between kthe bolt' and the plunger,`a. spring l jbetweenthe follower and the plunger, and*V detent means engaging the plunger and theV ollower'to'hold the plunger inspring com- 4 CIV testimony whereof I aiX my signature. l

Se y' Siif K lio i 

